CN208953642U - Portable CT polarity tester - Google Patents
Portable CT polarity tester Download PDFInfo
- Publication number
- CN208953642U CN208953642U CN201821367381.7U CN201821367381U CN208953642U CN 208953642 U CN208953642 U CN 208953642U CN 201821367381 U CN201821367381 U CN 201821367381U CN 208953642 U CN208953642 U CN 208953642U
- Authority
- CN
- China
- Prior art keywords
- test
- portable
- hook
- polarity tester
- battery module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The utility model provides a kind of portable CT polarity tester, is related to CT Check up polarity technical field, and portable CT polarity tester includes insulation test rod, the first battery module and measurement module；Insulation test rod includes test cross bar and test vertical bar, test cross bar is telescopic rod, the both ends for testing cross bar are equipped with the first hook, the positive and negative anodes of first battery module have been electrically connected connecting line, the second hook and third hook are equipped on two connecting lines, two second hooks can be overlapped with two first hooks respectively, and under the support of insulation test rod, two second are linked up with the two sides that can be overlapped on CT primary side respectively；Measurement module includes pointer multimeter and the measurement contact pin being electrically connected with pointer multimeter positive and negative anodes, and two measurement contact pins can be overlapped on respectively on the L line and N line of CT secondary side.It alleviates more CT polarity tester investment personnel in the prior art, test time-consuming, need to ascend a height or accidentally touch the technical issues of other electrification intervals.
Description
Technical field
The utility model relates to CT Check up polarity technical fields, in particular to a kind of portable CT polarity tester.
Background technique
Cause measurement and measuring error and protective relaying device incorrect dynamic because of mutual inductor polarity mistake in order to prevent
Make, polarity test is carried out to its current transformer (CT) before the newly-built or high voltage power transmission and transforming route power transmission of reconfiguration, to guarantee electricity
Power operates normally safely.Traditional polarity detection method is mainly include the following types: 1, " direct current actinobolia "；2, " alternating current method ".Mesh
Preceding field application is most commonly used or direct current actinobolia, rough way are exactly electric power storage of the operation field staff by assembling
Pond group positive and negative anodes are overlapped on the two sides of CT primary side with long test wire by insulating tool or ladder, then just by control
The on-off of cathode connects pointer multimeter throw of pointer direction at CT secondary winding and whether determines connect polarity to observe
Meet design requirement.
However " direct current actinobolia " has problems in practical applications: test process personnel are matched using more and presence
Conjunction problem: general test personnel need to be divided into two groups, and a group of people applies electric current in CT primary side, and another group applies in CT primary side
The deflection direction of CT secondary side pointer multimeter is observed while electric current；When CT primary side overlaps connecting line, because needs are stepped on
High or insulating bar accidentally touches other electrification intervals, and safety is poor.
Utility model content
The purpose of this utility model is to provide a kind of portable CT polarity testers, to alleviate the pole CT in the prior art
Property tester investment personnel are more, test is time-consuming, need to ascend a height or accidentally touch the technical issues of other electrification intervals.
The utility model provides a kind of portable CT polarity tester, including insulation test rod, the first battery module and
Measurement module；
The insulation test rod includes test cross bar and test vertical bar, and the test cross bar is telescopic rod and is fixed on described
The top of vertical bar is tested, the both ends of the test cross bar are equipped with the first hook, the positive and negative anodes difference of first battery module
It is electrically connected with connecting line, the second hook and third hook are equipped on two connecting lines, two second hooks can
It is overlapped respectively with two first hooks, under the support of the insulation test rod, two second hooks can be distinguished
It is overlapped on the two sides of CT primary side；
The measurement module includes pointer multimeter and the measurement contact pin being electrically connected with pointer multimeter positive and negative anodes, and two
Measurement contact pin described in item can be overlapped on respectively on the L line and N line of CT secondary side.
It further, further include the wireless control module of control circuit opening and closing, the wireless control module and described first
Battery module is connected in series.
Further, the measurement module further include control wireless control module opening and closing release the button and disconnect by
Button.
Further, the measurement module further includes the second battery module, second battery module and the finger
Needle type universal meter electrical connection.
Further, the measurement module further includes two spiral conducting lines, and two measurement contact pins pass through two respectively
The spiral conducting line is electrically connected with the pointer multimeter.
Further, the test cross bar is more than or equal between the two sides of the CT primary side in the length of extended state
Distance.
Further, the test vertical bar is telescopic rod, and the maximum extension of the test vertical bar is having a size of 4m-10m, most
Small contraction size is less than or equal to 1m.
Further, the test vertical bar and the test cross bar are telescopic type structure.
Further, second hook and third hook are staggered on the connecting line, in the connection
The length direction of line, the third hook are arranged in described second and link up with the side far from first battery module.
Further, the third hook is fixed on the end of the connecting line.
Compared with the existing technology, portable CT polarity tester provided by the utility model has the beneficial effect that:
Portable CT polarity tester provided by the utility model, including insulation test rod, the first battery module and survey
Measure module, wherein insulation test rod includes test cross bar and test vertical bar, and the both ends for testing cross bar are equipped with first and link up with, and first
The second hook on the connecting line that the positive and negative anodes of battery module extend can be overlapped on the first hook, make the first battery
Module is suspended on insulation test rod；At this point, the length for testing cross bar can be made corresponding not according to the scalability of test cross bar
With the distance between the two sides of the CT primary side of model, then by manipulation test vertical bar, link up with the third on two connecting lines
It is overlapped on the two sides of CT primary side respectively, completes the energization to CT primary side.By electromagnetic induction principle, CT secondary side also with
The energization of CT primary side generates electric current, and two measurement contact pins in test module are then overlapped on to the L line of CT secondary side respectively
On N line, and the deflection direction of pointer on pointer multimeter is observed, completes to determine whether CT installs correctly.
Above-mentioned entire test process only needs a staff to hang over the first battery module on insulation test rod, and
The first battery module is completed by insulation test rod to connect with the energization for the CT primary side for being located at eminence, then, then passes through survey
Die trial block detects the CT secondary side resting on the ground, that is, can determine whether CT installs correctly, and test is simple and convenient, does not also need to step on
The generation of other electrification spacing cases is accidentally touched in high and generation.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation of insulation test rod in portable CT polarity tester provided by the embodiment of the utility model
Figure；
Fig. 2 is the first battery module and wireless controlled in portable CT polarity tester provided by the embodiment of the utility model
The structural schematic diagram of molding block concatenation；
Fig. 3 is the structural schematic diagram of measurement module in portable CT polarity tester provided by the embodiment of the utility model.
Icon: 1- insulation test rod；The first battery module of 2-；3- measurement module；4- wireless control module；5-
Connecting line；11- tests cross bar；12- tests vertical bar；13- first is linked up with；31- pointer multimeter；32- measures pointer；
33- spiral conducting line；34- releases the button；35- cut-off push button；The second battery module of 36-；51- second is linked up with；52-
Three hooks.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1-Figure 3, the utility model embodiment provides a kind of portable CT polarity tester, including insulation is surveyed
Bar 1, the first battery module 2 and measurement module 3；Insulation test rod 1 includes test cross bar 11 and test vertical bar 12, and test is horizontal
Bar 11 is telescopic rod and the top for being fixed on test vertical bar 12, and the both ends of test cross bar 11 are equipped with the first hook 13, the first electric power storage
The positive and negative anodes of pond module 2 have been electrically connected connecting line 5, and the second hook 51 and third hook 52 are equipped on two connecting lines 5,
Two second hooks 51 can be respectively with two first 13 overlap joints of hook, and under the support of insulation test rod 1, two second are linked up with
51 can be overlapped on the two sides of CT primary side respectively；Measurement module 3 include pointer multimeter 31 and with pointer multimeter 31
The measurement contact pin of positive and negative anodes electrical connection, two measurement contact pins can be overlapped on respectively on the L line and N line of CT secondary side.
Portable CT polarity tester provided by the utility model, including insulation test rod 1,2 and of the first battery module
Measurement module 3, wherein insulation test rod 1 includes test cross bar 11 and test vertical bar 12, and the both ends of test cross bar 11 are equipped with first
13 are linked up with, the second hook 51 on the connecting line 5 that the positive and negative anodes of the first battery module 2 extend can be overlapped on the first hook
On 13, it is suspended on the first battery module 2 on insulation test rod 1；At this point, according to the scalability of test cross bar 11, it can be with
So that the length for testing cross bar 11 is corresponded to the distance between the two sides of the CT primary side of different model, then passes through manipulation test vertical bar
12, so that the third on two connecting lines 5 is linked up with 52 two sides for being overlapped on CT primary side respectively, completes the energization to CT primary side.
By electromagnetic induction principle, CT secondary side generates electric current also with the energization of CT primary side, then by two in test module
Measurement contact pin is overlapped on respectively on the L line and N line of CT secondary side, and observes the deflection direction of pointer on pointer multimeter 31,
It completes to determine whether CT installs correctly.
Above-mentioned entire test process only needs a staff to hang over the first battery module 2 on insulation test rod 1,
And the first battery module 2 is completed by insulation test rod 1 and is connect with the energization for the CT primary side for being located at eminence, then, then lead to
It crosses test module and detects the CT secondary side resting on the ground, that is, can determine whether CT installs correctly, test is simple and convenient, is also not required to
It ascends a height and occurs accidentally to touch other generations for charging spacing cases.
It is noted that L line is firewire in the present embodiment, N line is zero curve, and CT secondary side is also CT terminal box.In addition,
CT primary side energized part and CT secondary side measurement part separate, and can effectively reduce the use length of connecting line 5, avoid therefore
Cause error.
Specifically, the present embodiment also the specific structure of portable CT polarity tester is done it is described in detail below.
Firstly, as shown in Fig. 2, the present embodiment further includes the wireless control module 4 of control circuit opening and closing, wireless control module
4 and first battery module 2 be connected in series.
The on-off that a control slowdown monitoring circuit of CT is opened by remotely controlling wireless control module 4, effectively avoids the first battery
2 electricity of module is quickly finished.
Preferably, in the present embodiment, measurement module 3 further includes 34 Hes of releasing the button for controlling wireless control module 4 and being opened and closed
Cut-off push button 35.
34 and where cut-off push button 35 can directly control the first battery module 2 are released the button i.e. on measurement module 3
The on-off of circuit carries out operational observations convenient for double measurement personnel, reduces personnel's investment.
In the present embodiment, measurement module 3 further includes the second battery module 36, the second battery module 36 and pointer-type ten thousand
It is electrically connected with table 31.
Since 31 power consumption of pointer multimeter is few, 36 moment of the second battery module is electrically connected with pointer multimeter 31
It connects.
Further, as shown in figure 3, the measurement module 3 further includes two spiral conducting lines 33, two measurement contact pin difference
It is electrically connected by two spiral conducting lines 33 with pointer multimeter 31.
Spiral conducting line 33 is being in contraction state when not used, is convenient for measuring pointer 32 and is accommodated on measurement module 3, in order to
The carrying of measurement module 3 is transported；It can be extended again when in use so that two measure the L that pointers 32 can respectively with CT secondary side
Line and N line overlap joint, are completed to the polar judgement of CT.
Preferably, the present embodiment setting test cross bar 11 extended state length be more than or equal to CT primary side two sides it
Between distance.At this point, the more convenient two sides for being overlapped on CT primary side respectively of two thirds hook 52 on two connecting lines 5.
Further, the present embodiment setting test vertical bar 12 is telescopic rod, it is contemplated that the installation site of CT primary side, in order to
Guarantee that third hook 52 and the two sides of CT primary side overlap, the maximum extension of setting test vertical bar 12 is having a size of 4m-10m；In order to
Carrying is further facilitated, avoids accidentally touching a charging operation equipment and causes accident of human electric shock, setting test vertical bar 12 is minimum to be received
Reduced scale cun is less than or equal to 1m.
Preferably, as shown in Figure 1, the present embodiment setting test vertical bar 12 and test cross bar 11 are telescopic type knot
Structure.
Specifically, test cross bar 11 is made of two symmetrically arranged telescopic sleeves, the outer tube in two telescopic sleeves is mutual
Fixed, inner tube is stretched out round about, wherein the first hook 13 is separately fixed at the smallest inner tube of diameter in two telescopic sleeves
On；Test vertical bar 12 is made of a telescopic sleeve, and wherein the smallest interior pipe end of diameter and the outer tube of test cross bar 11 are fixed
Connection.
Further, in the present embodiment, the second hook 51 and third hook 52 are staggered on connecting line 5, are connecting
The second 51 sides far from the first battery module 2 of hook are arranged in the length direction of line 5, third hook 52.
At this point, third hook 52 is in free hang, exhausted after the completion of 13 overlap joint of the second hook 51 and the first hook
Under the lifting of edge reference test bar 1, it is more convenient to complete the overlap joint with CT primary side two sides cable.
Again because third hook 52 is whole to need guiding performance, when being fixed on connecting line 5, it is also necessary to and connecting line
5 electrical connections, to guarantee third hook 52 and complete circuit communication after the cable bond of CT primary side two sides.Preferably, this implementation
The ends that third hook 52 is fixed on connecting line 5 by example, at this point, third hook 52 can directly with conductive part end in connecting line 5
It is fixedly connected.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of portable CT polarity tester, which is characterized in that including insulation test rod, the first battery module and measurement mould
Block；
The insulation test rod includes test cross bar and test vertical bar, and the test cross bar is telescopic rod and is fixed on the test
The both ends on the top of vertical bar, the test cross bar are equipped with the first hook, and the positive and negative anodes of first battery module are electrically connected respectively
It is connected to connecting line, the second hook and third hook are equipped on two connecting lines, two second hooks can be distinguished
It is overlapped with two first hooks, under the support of the insulation test rod, two second hooks can overlap respectively
In the two sides of CT primary side；
The measurement module includes pointer multimeter and the measurement contact pin being electrically connected with pointer multimeter positive and negative anodes, two institutes
Stating measurement contact pin can be overlapped on respectively on the L line and N line of CT secondary side.
2. portable CT polarity tester according to claim 1, which is characterized in that further include the nothing of control circuit opening and closing
Line traffic control module, the wireless control module and first battery module are connected in series.
3. portable CT polarity tester according to claim 2, which is characterized in that the measurement module further includes control
Wireless control module opening and closing release the button and cut-off push button.
4. portable CT polarity tester according to claim 1, which is characterized in that the measurement module further includes second
Battery module, second battery module are electrically connected with the pointer multimeter.
5. portable CT polarity tester according to claim 1, which is characterized in that the measurement module further includes two
Spiral conducting line, two measurement contact pins pass through two spiral conducting lines respectively and are electrically connected with the pointer multimeter.
6. portable CT polarity tester according to claim 1, which is characterized in that the test cross bar is in extended state
Length be more than or equal to the CT primary side the distance between two sides.
7. portable CT polarity tester according to claim 6, which is characterized in that the test vertical bar is telescopic rod,
For the maximum extension of the test vertical bar having a size of 4m-10m, minimum of contraction size is less than or equal to 1m.
8. portable CT polarity tester according to claim 7, which is characterized in that the test vertical bar and the test
Cross bar is telescopic type structure.
9. portable CT polarity tester according to claim 1, which is characterized in that second hook and the third
Hook is staggered on the connecting line, and in the length direction of the connecting line, the third hook is arranged described second
Link up with the side far from first battery module.
10. portable CT polarity tester according to claim 9, which is characterized in that the third hook is fixed on institute
State the end of connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367381.7U CN208953642U (en) | 2018-08-23 | 2018-08-23 | Portable CT polarity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367381.7U CN208953642U (en) | 2018-08-23 | 2018-08-23 | Portable CT polarity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953642U true CN208953642U (en) | 2019-06-07 |
Family
ID=66735594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821367381.7U Active CN208953642U (en) | 2018-08-23 | 2018-08-23 | Portable CT polarity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208953642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
| CN112526371A (en) * | 2020-11-26 | 2021-03-19 | 国网福建省电力有限公司清流县供电公司 | Novel storage battery internal resistance and voltage testing rod |
-
2018
- 2018-08-23 CN CN201821367381.7U patent/CN208953642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
| CN112526371A (en) * | 2020-11-26 | 2021-03-19 | 国网福建省电力有限公司清流县供电公司 | Novel storage battery internal resistance and voltage testing rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102854486B (en) | On-site initiative error-verification system for voltage transformer and method thereof | |
| CN208953642U (en) | Portable CT polarity tester | |
| CN105759147B (en) | A kind of integrated testing device of cell management system of electric automobile | |
| CN110441576B (en) | High-voltage cable sheath circulation monitoring device and fault positioning method | |
| CN106226564B (en) | Routine test transfer box for high-voltage capacitance type voltage transformer without disassembling lead | |
| CN108919002A (en) | A kind of test macro of direct-current charging post | |
| CN105182173B (en) | Novel composite mutual inductor polarity tester | |
| CN206208974U (en) | A kind of current measuring device | |
| CN208297613U (en) | Grounding measurement device and grounding wire detection system | |
| CN110600292A (en) | Telescopic insulating bar of intelligence | |
| CN105891664A (en) | Multi-path analog loop and polarity calibration instrument | |
| CN207067294U (en) | A kind of down conductor continuity test instrument | |
| CN201281891Y (en) | High voltage transmission variation electricity line intelligent alarm | |
| CN203037783U (en) | On-off detection apparatus for secondary cable core of current transformer | |
| CN205157639U (en) | Synchronous earth mat reposition of redundant personnel vector test system of application GPS | |
| CN208921848U (en) | A kind of instrument for testing polarity of current transformer | |
| CN209400641U (en) | Current transformer polarity tester and system | |
| CN110672984A (en) | Portable direct current system ground fault detection device | |
| CN203909080U (en) | Telescopic wiring post used for transformation ratio tests of current transformer in transformer station | |
| CN205982495U (en) | Electric control line school lineman's utensil | |
| CN109374954A (en) | A kind of novel power transmission line parameter circuit value measurement test wire | |
| CN203551720U (en) | Mutual inductor polarity testing device | |
| CN103592561B (en) | Secondary wiring of current mutual inductor testing fixture | |
| CN102221661A (en) | High pressure grounding line selection apparatus | |
| CN109490648A (en) | GIS substation line phase checking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |